File size: 2,140 Bytes
1e92f2d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 |
import { createNext } from 'e2e-utils'
import { NextInstance } from 'e2e-utils'
// TODO: Implement experimental.fallbackNodePolyfills
;(process.env.IS_TURBOPACK_TEST ? describe.skip : describe)(
'Disable fallback polyfills',
() => {
let next: NextInstance
function getFirstLoadSize(output: string) {
const firstLoadRe =
/○ \/.*? (?<size>\d.*?) [^\d]{2} (?<firstLoad>\d.*?) [^\d]{2}/
return Number(output.match(firstLoadRe).groups.firstLoad)
}
beforeAll(async () => {
next = await createNext({
files: {
'pages/index.js': `
import { useEffect } from 'react'
import crypto from 'crypto'
export default function Page() {
useEffect(() => {
crypto;
}, [])
return <p>hello world</p>
}
`,
},
dependencies: {
axios: '0.27.2',
},
})
await next.stop()
})
afterAll(() => next.destroy())
it('Fallback polyfills added by default', async () => {
expect(getFirstLoadSize(next.cliOutput)).not.toBeLessThan(200)
})
it('Reduced bundle size when polyfills are disabled', async () => {
await next.patchFile(
'next.config.js',
`module.exports = {
experimental: {
fallbackNodePolyfills: false
}
}`
)
await next.start()
await next.stop()
expect(getFirstLoadSize(next.cliOutput)).toBeLessThan(200)
})
it('Pass build without error if non-polyfilled module is unreachable', async () => {
// `axios` uses `Buffer`, but it should be unreachable in the browser.
// https://github.com/axios/axios/blob/649d739288c8e2c55829ac60e2345a0f3439c730/lib/helpers/toFormData.js#L138
await next.patchFile(
'pages/index.js',
`import axios from 'axios'
import { useEffect } from 'react'
export default function Home() {
useEffect(() => {
axios.get('/api')
}, [])
return "hello world"
}`
)
await expect(next.start()).not.toReject()
})
}
)
|